Omicron (BA.1) SARS-CoV-2 variant is associated with reduced risk of hospitalization and length of stay compared with Delta (B.1.617.2)

Peralta‐Santos, André; Freire Rodrigues, Eduardo; Moreno, Joana; Ricoca Peixoto, Vasco; Casaca, Pedro; Fernandes, Eugénia; Paulo Gomes, João; Ferreira, Rita; Isidro, Joana; Pinto, Miguel; Borges, Vítor; Vieira, Luís; Duarte, Sílvia; Sousa, Carlos; Pedro Almeida, José; Menezes, Luís; I. Ferreira, Bibiana; Catarina Matias, Ana; Pelerito, Ana; Freire, Samanta; Grilo, Teresa; Medeiros Borges, Cláudia; Moutinho, Vera; Leite, Andreia; Kislaya, Irina; Paula Rodrigues, Ana; Pinto Leite, Pedro; Nunes, Baltazar

doi:10.1101/2022.01.20.22269406

Public

Omicron (BA.1) SARS-CoV-2 variant is associated with reduced risk of hospitalization and length of stay compared with Delta (B.1.617.2)

Published in medRxiv • Jan 23, 2022

Authors:

André Peralta‐Santos

Eduardo Freire Rodrigues

Joana Moreno

Abstract

Abstract Introduction Early reports showed that Omicron (BA.1) SARS-CoV-2 could be less severe. However, the magnitude of risk reduction of hospitalization and mortality of Omicron (BA.1) infections compared with Delta (B.1.617.2) is not yet clear. This study compares the risk of severe disease amon...

Subject

Medicine

Logistic regression

Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2)

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